111455231 has 8 divisors (see below), whose sum is σ = 112994784. Its totient is φ = 109923840.

The previous prime is 111455219. The next prime is 111455249. The reversal of 111455231 is 132554111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111455231 - 2¹⁸ = 111193087 is a prime.

It is a super-2 number, since 2×111455231² = 24844537034526722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111455197 and 111455206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111455251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28526 + ... + 32196.

It is an arithmetic number, because the mean of its divisors is an integer number (14124348).

Almost surely, 2^111455231 is an apocalyptic number.

111455231 is a deficient number, since it is larger than the sum of its proper divisors (1539553).

111455231 is an equidigital number, since it uses as much as digits as its factorization.

111455231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081.

The product of its digits is 600, while the sum is 23.

The square root of 111455231 is about 10557.2359545480. The cubic root of 111455231 is about 481.2456520437.

The spelling of 111455231 in words is "one hundred eleven million, four hundred fifty-five thousand, two hundred thirty-one".